<template>
  <div class="upload-container">
    <el-button icon='el-icon-upload' size="mini" :style="{background:color,borderColor:color}"
               @click=" dialogVisible=true" type="primary">上传图片
    </el-button>
    <el-dialog append-to-body :visible.sync="dialogVisible">
      <el-upload class="editor-slide-upload"
                  :action= "uploadImgUrl"
                  name='pic'
                 :data="dataObj"
                 :headers="dataObj"
                 :multiple="true"
                 :file-list="fileList"
                 :show-file-list="true"
                 list-type="picture-card"
                 :on-remove="handleRemove"
                 :on-success="handleSuccess"
                 :before-upload="beforeUpload">
        <el-button size="small" type="primary">点击上传</el-button>
      </el-upload>
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="handleSubmit">确 定</el-button>
    </el-dialog>
  </div>
</template>

<script>
  import {policy} from '@/api/oss'
import { getToken } from '@/utils/auth' // 验权
  export default {
    name: 'editorSlideUpload',
    props: {
      color: {
        type: String,
        default: '#1890ff'
      }
    },
    data() {
      return {
        uploadImgUrl:process.env.BASE_API+'/oss/upload/img',
        dialogVisible: false,
        listObj: {},
        fileList: [],
        dataObj: {
          // policy: '',
          // signature: '',
          // key: '',
          // ossaccessKeyId: '',
          // dir: '',
          // host: '',
           Authorization:"",
           loginToken:'',
        },
        finalImgList:[],//最终使用的图片地址列表
      }
    },
    methods: {
      checkAllSuccess() {
        return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess)
      },
      handleSubmit() {
        // const arr = Object.keys(this.listObj).map(v => this.listObj[v])
        // if (!this.checkAllSuccess()) {
        //   this.$message('请等待所有图片上传成功 或 出现了网络问题，请刷新页面重新上传！')
        //   return
        // }
        const arr = this.finalImgList;
        this.$emit('successCBK', arr);
        this.listObj = {};
        this.fileList = [];
        this.finalImgList =[];
        this.dialogVisible = false;
      },
      handleSuccess(response, file) {
        let tempObj={url:""};
        tempObj.url = response.data;
        this.finalImgList.push(tempObj);
        this.$forceUpdate();//有时候会出现100%但是页面不显示图片的情况
        console.timeEnd();
        // const uid = file.uid;
        // const objKeyArr = Object.keys(this.listObj)
        // for (let i = 0, len = objKeyArr.length; i < len; i++) {
        //   if (this.listObj[objKeyArr[i]].uid === uid) {
        //     this.listObj[objKeyArr[i]].url = this.dataObj.host + '/' + this.dataObj.dir + '/' + file.name;
        //     this.listObj[objKeyArr[i]].hasSuccess = true;
        //     return
        //   }
        // }
      },
      handleRemove(file) {
        const uid = file.uid;
        const objKeyArr = Object.keys(this.listObj);
        for (let i = 0, len = objKeyArr.length; i < len; i++) {
          if (this.listObj[objKeyArr[i]].uid === uid) {
            delete this.listObj[objKeyArr[i]];
            return
          }
        }
      },
       beforeUpload(file) {
         let _self = this;
        let loginToken = getToken();
        _self.dataObj.loginToken =loginToken;
        _self.dataObj.Authorization =loginToken;
        console.time();
      },
      // beforeUpload(file) {
      //   const _self = this
      //   const fileName = file.uid;
      //   this.listObj[fileName] = {};
      //   return new Promise((resolve, reject) => {
      //     policy().then(response => {
      //       _self.dataObj.policy = response.data.policy;
      //       _self.dataObj.signature = response.data.signature;
      //       _self.dataObj.ossaccessKeyId = response.data.accessKeyId;
      //       _self.dataObj.key = response.data.dir + '/${filename}';
      //       _self.dataObj.dir = response.data.dir;
      //       _self.dataObj.host = response.data.host;
      //       _self.listObj[fileName] = {hasSuccess: false, uid: file.uid, width: this.width, height: this.height};
      //       resolve(true)
      //     }).catch(err => {
      //       console.log(err)
      //       reject(false)
      //     })
      //   })
      // }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  .upload-container .editor-slide-upload{
    margin-bottom: 20px;
  }
</style>
